SILVER STORMTM Medical Grade Optical Mouse With Scroll Wheel - Dishwasher Safe & Antimicrobial (Black)(USB)Primary InformationInput Device Type :  Mouse Device Form Factor :  External Connectivity Technology :  Wired Buttons Qty :  2 Dimensions&MiscellaneousColor :  Black Service&SupportService & Support Type :  2 years limited warranty UNSPSC CodeUNSPSC Code :  43211708Â